Gross margin adjusted LTV is lifetime value expressed in gross profit. It answers what a customer contributes after the cost of serving them, which is the money actually available to repay acquisition spend and fund the business.
``` Gross Margin Adjusted LTV = (Annual Revenue per Account x Gross Margin %) / Annual Churn Rate ```
Why the revenue version overstates value
A customer paying 12,000 dollars a year at a 75 percent gross margin contributes 9,000 dollars of gross profit. The remaining 3,000 dollars pays for infrastructure and support. If that customer stays five years, the revenue version of LTV reports 60,000 dollars while the business keeps 45,000.
The distortion compounds when the number meets acquisition cost. CAC is a real cash figure with no margin applied. Dividing a revenue-based LTV by a fully loaded CAC compares gross dollars against net dollars and produces a ratio that clears any threshold you set for it.
What sits inside the margin
Cost of goods sold in SaaS covers the cost of delivering the product to accounts you already have.
| Include | Exclude |
|---|---|
| Cloud infrastructure and data costs | Sales and marketing salaries |
| Support and service-focused customer success | R&D and product engineering |
| Third-party software embedded in the product | General and administrative overhead |
| Professional services delivery cost | Acquisition campaigns and events |
What the adjusted number changes
Margin adjusted LTV moves three decisions. It resets the LTV to CAC ratio to a defensible figure, it sets the ceiling on what you can afford to pay for a customer in each segment, and it exposes segments where revenue growth is buying margin-negative accounts.
The number also connects retention work to unit economics. Extending customer life or lifting net revenue retention raises margin adjusted LTV without spending another dollar on acquisition, and expansion revenue usually carries a higher margin than the original subscription because the delivery cost is already in place.
Segment the calculation by cohort before using it in planning. Cohort-level margin adjusted LTV feeds the customer value assumptions inside sales forecasting, where a blended figure would hide the tiers that cost the most to keep.
Frequently Asked Questions
Why should LTV be calculated on gross profit instead of revenue?
Revenue-based LTV credits the company with money it never keeps. Every subscription dollar carries hosting, support, and delivery cost before any of it can repay acquisition spend. Comparing a revenue-based LTV against a fully loaded acquisition cost inflates the ratio by whatever your cost of goods sold happens to be.
What costs belong in the margin adjustment?
Include the costs of delivering the service to existing customers. Cloud infrastructure, support staff, customer success coverage tied to service rather than expansion, third-party software passed through to the product, and professional services delivery all belong. Sales, marketing, and R&D stay out, since those sit below gross margin and are already counted in acquisition cost.
How much does the adjustment change the number?
It scales lifetime value directly by the margin. A business running seventy percent gross margin reports a margin adjusted LTV thirty percent lower than the revenue version, and its LTV to CAC ratio drops by the same proportion. A services-heavy business with a thinner margin sees a larger cut, which is usually the point of running the calculation.
Does the margin used need to be customer-specific?
Use a segment-level margin when the cost to serve differs materially between tiers. Enterprise accounts with dedicated support and heavy implementation carry a different margin than self-serve accounts on the same product. A single company-wide margin applied to every cohort overstates the value of the accounts that cost the most to keep.
Put these metrics to work
ORM builds custom revenue forecast models that turn concepts like gross margin adjusted ltv into prescriptive action for your team.
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